This last image (below) is from 1916 and is just one of many similar generic card designs featuring Dutch children. (Their accents always seem more German than Dutch to me, but I could be wrong.) The pennants or other decorative motifs featuring the cities names were always added later, allowing the same cards to be sold anywhere as "local." I don't quite understand what the appeal was -- But then I don't really understand the appeal of Family Circus, Precious Moments or Hello Kitty either.